Public regulatory phone
(617) 225-4340
Associations below come from public FCC regulatory records. Confidence describes the source relationship, not current ownership of the number.
| Company or contact | FRN | System | Source record | Confidence | Observed |
|---|---|---|---|---|---|
| Marcus Spectrum Holdings, LLC registrant | 0005009691 | CORES | 0005009691 | Authoritative identifier (100.0%) | 2026-08-06 01:18:59 |